CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (PARENTHETICAL) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024
Gains on overseas deposits	$ 1
Related Party \| Monarch Point Re \| Loan With Monarch Point Re
Non-cash repayment of advance	127	$ 95
Interest received on advance	7	9
Related Party \| Monarch Point Re \| Retrocession Agreement With Monarch Point Re
Reinsurance premiums	114	92
Ceded losses and loss expenses	$ 30	12
Related Party \| Third Party Reinsurer \| Loan Agreement With Third Party Reinsurer
Non-cash repayment of advance		45
Related Party \| Third Party Reinsurer \| Retrocession Agreement with Third Party Reinsurer
Reinsurance premiums		$ 45

Amount of written premiums ceded to other entities.

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